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JDBC SQLServer 2000 connection problem

JDBC SQLServer 2000 connection problem

JDBC SQLServer 2000 connection problem

Hi all,

I have the code below...see bottom of thread

I am using netbeans 6.9, if i just run the file as is, it connects to the DB and disconnects just fine.  However, if i create an instance of this class from within another class and call the QueryDB() method, i get this error:

com.microsoft.sqlserver.jdbc.SQLServerException: The TCP/IP connection to the host XXXXXX, port 1433 has failed. Error: "Malformed reply from SOCKS server. Verify the connection properties, check that an instance of SQL Server is running on the host and accepting TCP/IP connections at the port, and that no firewall is blocking TCP connections to the port."

I am comletely stumped..the connection code obviously works, but only when called from the files main method, but not from outside the class?
public class DB_Connection {

     private java.sql.Connection  con = null;
     private final String url = "jdbc:sqlserver://XXXXXXX:1433;databaseName=XXXX;integratedSecurity=true";

     private final String selectMethod = "cursor";

     public DB_Connection(){}

     public java.sql.Connection getConnection(){
               con = java.sql.DriverManager.getConnection(url);
               if(con!=null) System.out.println("DB connected...");
          }catch(Exception e){
               System.out.println("Error Trace in getConnection() : " + e.toString());
          return con;

     public void QueryDB({

        con = this.getConnection();




               }else System.out.println("Error: No active Connection");

          }catch(Exception e){}


     public void closeConnection(){

               System.out.println("DB disconnected.");

          }catch(Exception e){}


     public static void main(String[] args) throws Exception {

          DB_Connection myDbTest = new DB_Connection();




RE: JDBC SQLServer 2000 connection problem

Are you executing both inside NetBeans? Maybe it's a problem with firewall permissions


RE: JDBC SQLServer 2000 connection problem

Hi Dian,

When it works i am using 'Run file' option within netbeans just to run that java file.  When it does NOT work i am running the whole application after a clean and build.  Does this off anymore clues?


RE: JDBC SQLServer 2000 connection problem

Wrong version of the jdbc driver in your class-path?

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